I don't necessarily know if this "miss" is intentional or not. The subject is certainly not one that people line up to talk about, however most have been touched by it at one point or another. Now, if you are in your 30's or 40's I could understand this being on the back burner for a while, however if you near the conventional retirement age, I would most certainly give it a glance.
Having a "late stage life plan" or "A longer term care plan" is something I'm not sure that we can afford to miss. The discussion need not be terribly invasive, but if you are worried about discussing this with anyone other than your spouse, or your children, then here are some helpful steps to consider after you understand the need for a plan (if you need to ask this, I'm not sure we are on the same page yet)
1- Understand the health care system, and also the options in your community (if you needed it tomorrow, is it available for you?)
2- Clear instructions (POA) and clear financial capacity
3- Know who can help you (have you discussed this with anyone?)
4- Create a care plan.......and review it every once in a while.
Not so fun fact: According to an IPSOS REID poll, 96% of seniors have not talked to their families about getting assistance. 50% believe their kids will provide care, but have also not discussed this.